My district has lost over 40 teachers. They decided to take early retirement rather than risk teaching in a "live" classroom. They're now drawing pensions, for the most part, and I don't think we'll ever get them back.
I was offered the same deal last month. I decided to keep teaching, and I said I didn't mind teaching "live" as long as everybody was taking the proper precautions. So far, everyone has. However, there has been some noise about "encouraging" teachers over 60--a category to which I belong--to retire, as they are at higher risk of sickness and death due to covid. We have the option of teaching online only, but our hours--and pay--would be cut in half if we took that option. Right now, I'm working 4 1/2 days a week; two of them are "live" teaching.
We already had a mini-crisis a couple of years ago when the district said they were increasing class sizes from 35 to 45 because of staffing shortages. We just aren't getting the new, younger teachers to replace the older ones who retire. This process has drastically accelerated during the pandemic.
The fact that there's no one available to replace me has informed my decision to stay. But we're in big trouble. The idea has been floated to relax teacher licensure requirements to allow prospective teachers to become credentialed on the job. I don't know where that's going right now.
And my understanding is that Oregon is doing better than most states in this regard! This is yet another aspect of daily life that the pandemic+Trump has screwed royally.